Would he have killed his ?????

"When he tells his wife on the phone that in some countries it is legal to kill your wife if she insults you, he is clearly signalling his intentions."

Yeah, this is a very telling moment. The film is preparing us for an inevitability. We're given every opportunity to realise that the story can only end in tragedy, and the question is only who will get hurt.

It's the recurring theme of the scenes; his violence is inevitable. From the grocery store, to the breakfast menu, to taking the family hostage. He doesn't necessarily intend for the situations to get out of hand. In all of them he denies his responsibility and even seems surprised that people would think he's the one at fault, but the phone call tells us he's increasingly aware that things just go against him.

I don't think he has any urge to harm his daughter, in fact I think that's the last thing he'd want, but the cop knows that with a bag full of guns and a near army chasing him, things can only end one way.

The insurance thing was Bill's "plan B" now that his original plan was already foiled.

As PrimeMinisterOfTheSinister & Supratad both point out, Bill pretty much said he was going to kill his wife AND daughter so they could all be "together in the dark."

BTW, it took me a second viewing to put that together, too.

Once his wife got away with the daughter, he knew he'd never get another chance to kill them. So he went with plan B: get himself killed (since he was planning on dying anyway) and provide for his daughter at the same time.

In a sense, he redeemed himself rather like Darth Vader did, except he was both Palpatine and Anakin

He said that when he realized that both wife and daughter were away from him, with the policeman..besides that I do not believe that he would have killed his daughter.